L03.121 Acute lymphangitis of right axilla

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from L03 Cellulitis and acute lymphangitis

Excludes2 (not included here)

• cellulitis of anal and rectal region (K61.-)
• cellulitis of external auditory canal (H60.1)
• cellulitis of eyelid (H00.0)
• cellulitis of female external genital organs (N76.4)
• cellulitis of lacrimal apparatus (H04.3)
• cellulitis of male external genital organs (N48.2, N49.-)
• cellulitis of mouth (K12.2)
• cellulitis of nose (J34.0)
• eosinophilic cellulitis [Wells] (L98.3)
• febrile neutrophilic dermatosis [Sweet] (L98.2)
• lymphangitis (chronic) (subacute) (I89.1)

Applies from L03.12 Acute lymphangitis of other parts of limb

Excludes2 (not included here)

• acute lymphangitis of fingers (L03.2-)
• acute lymphangitis of toes (L03.04-)
• acute lymphangitis of groin (L03.324)

MS-DRG index

Defines the logic of DRG(s) 573-575 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 682.3 Cellulitis and abscess of upper arm and forearm (approximate)

Code annotations containing back-references to L03.121

Back-references to L03

• Type 1 Excludes: I89.1 Lymphangitis ("acute lymphangitis (L03.-)")
• Type 2 Excludes: L89 Pressure ulcer ("skin infections (L00-L08)")
• Type 2 Excludes: L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified ("skin infections (L00-L08)")
• Type 2 Excludes: L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified ("skin infections (L00-L08)")
• Type 2 Excludes: L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified ("skin infections (L00-L08)")
• Use Additional: T65.84 Toxic effect of xylazine ("cellulitis and acute lymphangitis (L03.-)")

Nearby codes

• L03.114 Cellulitis of left upper limb
• L03.115 Cellulitis of right lower limb
• L03.116 Cellulitis of left lower limb
• L03.119 Cellulitis of unspecified part of limb
• L03.12 Acute lymphangitis of other parts of limb
• L03.121 Acute lymphangitis of right axilla (this code)
• L03.122 Acute lymphangitis of left axilla
• L03.123 Acute lymphangitis of right upper limb
• L03.124 Acute lymphangitis of left upper limb
• L03.125 Acute lymphangitis of right lower limb
• L03.126 Acute lymphangitis of left lower limb